baber/WOPTO huggingface dataset:
Patent GB-971614-A (GB)
Title: Polyamine compounds
Inventor: SONNABEND LAWRENCE FAYE
IPC: A01D78/16
Filed: 1963-02-27
Abstract: The invention comprises polyamine compounds which consist of at least one radical of an alkylenepolyamine or polyalkylene-polyamine which is connected, at a nitrogen atom or atoms, through a methylene bridge to the phenyl ring of at least one diphenyl ether group.  The new compounds may be made by reacting halomethylated diphenyl ethers with alkylenepolyamines or polyalkylene polyamines.  Suitable halomethylated diphenyl ethers are those of the formula <FORM:0971614/C1/1> where m is 1 or 2, n is 0, 1 or 2 and X is chlorine or bromine, or a mixture thereof.  Preferred polyamines are represented by the formula NH2(CaH2aNH)bH wherein a is an integer from 2 to 6, and b is an integer from 1 to 4. The reaction may be effected within the temperature range from 0 DEG C. to 120 DEG C. Inert diluents such as liquid aliphatic or aromatic hydrocarbons may be used. Examples describe the reaction of 4, 41-bro-(chloromethyl) diphenyl ether with ethylene diamine, diethyltriamine and 1, 6-hexanediamine.ALSO:The invention comprises rubbery polymeric polyamine compounds which consist of alkylene-polyamines or polyalkylene-polyamines which are connected, at nitrogen atoms, through methylene bridges to the phenyl rings of diphenyl ether groups.  The new compounds may be made by reacting halomethylated diphenyl ethers with alkylenepolyamines or polyalkylene polyamines. Suitable halomethylated diphenyl ethers are those of the formula <FORM:0971614/C3/1> where m is 1 or 2, n is 0, 1 or 2 and X is chlorine or bromine or a mixture thereof.  Preferred polyamines are represented by the formula NH2(CaH2aNH)bH wherein a is an integer from 2 to 6, and b is an integer from 1 to 4. The reaction may be effected within the temperature range from 0 DEG C. to 120 DEG C. Inert diluents such as liquid aliphatic or aromatic hydrocarbons may be used.  With a mole ratio of alkylene-polyamine or polyalkylenepolyamine to halomethyl groups of from 1.5 to 2.0, rubber low molecular weight polymers are obtained from the 4, 41-bis (halomethyl) diphenyl ethers. These products can be blended with epoxy resins as curing agents.  Examples describe the preparation of the polyamines and their use in curing the diglycidyl ether of bisphenol A.
Patent GB-397225-A (GB)
Title: Improvements relating to the arrangement and actuation of the magnetos and other accessories of internal combustion engines
IPC: F02B75/18
Filed: 1933-02-25
Abstract: 397,225. Lubricating. McINTYRE, W. J., 42, Clifton Street, Belfast. Feb. 25, 1933, No. 7943/32. [Class 12 (iii).] The oil pump 16 of an internal-combustion engine is actuated by bevel gearing 6 from the crank shaft and draws oil from the sump through an orifice 17a, agitates and thins the same, and then forces it through a pipe 16a to the engine parts. The pump may be of the geared, centrifugal, or screw type.
Patent GB-359362-A (GB)
Title: Improvements in sanitary napkins
IPC: A61F13/15
Filed: 1931-03-16
Abstract: 359,362. Sanitary napkins. JOHNSON & JOHNSON (GT. BRITAIN), Ltd., Slough, Buckinghamshire. March 16, 1931, No. 8055. [Class 81 (ii).] A pad for a sanitary napkin comprises a mass 5 of fibrous cellulosic material, a wrapper 6, preferably of thin sheets of cellular wadding partly enclosing the mass and having free longitudinal edges 8, and a sheet of material 7, rendered impervious to liquids, and lying on the mass beneath the edges 8. The pad is enclosed in an outer gauze sheath.
Patent GB-839668-A (GB)
Title: Improvements relating to gravity flow gas scrubbers
IPC: B01D47/06
Filed: 1958-03-13
Abstract: 839,668. Contacting gases with liquid. SIMON-CARVES Ltd. (Otto, C.). March 13, 1958, No. 8056/58. Class 55 (2). A gas-liquid contact apparatus (Fig. 1) comprises a tower having at least four superposed compartments forming two separate flow paths for liquid supplied from a pipe 19 to each of the two uppermost compartments and for gas entering at 7 and passing partly into the lowermost compartment and partly through a conduit 10 to the next compartment above, each compartment having a conduit 5 or 6 whereby gas from one compartment, excepting the two uppermost compartments, passes to an alternate higher compartment and liquid collecting at the base of a compartment, excepting the two lowermost compartments, is fed by conduits 13 to the spray nozzles of an alternate lower compartment. In a modification (Fig. 2) spray nozzles 15 and 17 are arranged on ring headers 14 and 16. The conduits 5, 6 and 13 may be arranged externally of the tower.
Patent GB-985083-A (GB)
Title: Improvements in or relating to the subdivision of foil into strips
IPC: B29C49/04
Filed: 1964-02-27
Abstract: 985,083. Slitting apparatus. H. BECKER. Feb. 27, 1964 [Feb. 28, 1963], No. 8200/64. Heading B4B. Apparatus for longitudinally slitting a foil 1 of synthetic plastics or resinous material comprises slitting means 5, a first means to drive the foil towards the slitting means, and a second means to drive the slit foil away from the slitting means, the first and second driving means being so arranged that the subdivided foil is stretched sufficiently to remove any distortion of the foil caused during the cutting. As described, the slitting means comprises circular cutting blades 5 fixed to a non-rotatable shaft 6 which co-operates with a fixed support 7 which is spring-urged against the blades and comprises a metal plate 7a with a thin resilient elastomeric upper layer 7b faced with a metal foil layer 7c. The first driving means is in the form of a pair of rollers 3, 4 and the second driving means in the form of a pair of rollers 8, 9, the latter rollers being driven at greater speed than the rollers 3, 4. Specification 859,521 is referred to.
Patent GB-989109-A (GB)
Title: Variable speed ratio transmissions
IPC: F16H15/38
Filed: 1962-03-02
Abstract: 989,109. Variable-speed gear. CURTISS-WRIGHT CORPORATION. March 2, 1962 [March 8, 1961], No. 8280/62. Heading F2D. In a steplessly variable friction gear of the type wherein torque transmitting precessional rollers 20 are arranged between driving and driven toric discs 16, 18, dashpots 96 damp axial movement of a rods 50 on which the rollers 20 are mounted and which movement initiates precessional tilting of the rollers 20 about the axis of the rod 50. Torque reaction on the rollers 20 is balanced by oil pressure, Fig. 3 (not shown), which acts through a lever 68 on the rods 50. Torque responsive traction pressure is provided by balls 132 between cam surfaces 124, 130 on the driving shaft 12 and teric disc 16 respectively. Each dashpot 96 comprises a piston 108 fast with each rod 50 in a fixed sealed cylinder 104 filled with a silicone oil having a viscosity of approximately 12,500 centistokes at 100‹ F. The piston area and dimensions of a restricted orifice 110 in the piston are chosen so that each dashpot has a damping constant within the range 2000 to 8000 pounds per inch per second and preferably is approximately 5000 pounds per inch per second. Specification 929,441 is referred to.
Patent GB-512899-A (GB)
Title: Improvements in or relating to glazed structures
IPC: E04C2/54
Filed: 1938-03-17
Abstract: 512,899. Washers. KING & CO., Ltd., J. A., and KING, J. A. March 17, 1938, No. 8288. [Class 89 (i)] [Also in Group X] A washer 4 for use in securing the panels 1 of a glazed structure to a supporting gridwork 2 is of cruciform shape, such that it enters rabbets formed along the edges of the panels and engages the corners of four adjacent panels, being fastened by means of a screw 6 which enters a threaded ferrule 7 in the grid. Ribs 5 provided on the underside of the washers project between the edges of the panels. A modified form of washer for use with thin unrabbeted sheets of glass is of square shape, provided with locating ribs on the underside, the upper surface being of shallow domed or pyramid form.
Patent GB-1133393-A (GB)
Title: Improvements in or relating to mechanisms for shifting power transmission elements
IPC: F16H61/30
Filed: 1966-02-24
Abstract: 1,133,393. Change speed control. EATON AXLES Ltd. 24 Feb., 1966 [3 March, 1965], No. 8295/66. Heading F2D. In a two-speed axle wherein shift of a toothed gear establishing torque-transmitting sleeve (13) is effected on reduction of transmitted torque, the sleeve (13) is axially shifted by a piston 50 which is movable in a cylinder 65, is held in Low gear position by a spring 67 and is acted on for upshift to High gear position, against the spring 67, by pneumatic pressure admitted to the cylinder above the piston, and the rod 51 of the piston is preferably square-sectioned, is encircled closely by the spring 67, and is connected to the sleeve (13) by a bell-crank lever 43 and a lever (21) (Figs. 1, 2, not shown). As shown a rolling, flexible diaphragm-type seal 60, between two cups 53 (59) forming the piston, is clamped between cylinder portions 61, 62. The piston movement is stabilized by nylon rings 71, 72. At least one vent port 70 is provided below the piston. A bumper 80 defines the High gear position of the piston. The piston-rod is guided in a supporting casing 33 by a nylon bush 77 having a flange portion 77b supporting the spring. Ports 59c in the upper piston cup (59) permit air pressure application to the rolling seal to facilitate movement thereof. The piston-rod 51 is connected to the bell-crank lever 43 by a clevis pin 52 of the pistonrod engaging a slot 45a in the bell-crank lever. In an alternative embodiment, Fig. 6 (not shown), the piston comprises a single cup into which the piston-rod is screwed, the pistonseal comprises an O-ring which is flanked by felt rings, and the guide bush 77 is omitted, the slot 45a in the bell-crank lever 43 being replaced by a circular opening.
Patent GB-472478-A (GB)
Title: Improvements relating to tip up seat fittings
IPC: A47C7/56
Filed: 1936-03-20
Abstract: 472,478. Tip-up seats. PARKES, S. R. March 20, 1936, No..8303. [Classes 52 (ii) and 52 (v)] A tip-up seat of the kind adapted to be attached to a vertical partition &c. and to fold flat against it, comprises a seat A, a pair of fixing brackets B, B<1>, to each of which are pivoted long links C and shorter links D, the outer ends of which are pivoted to brackets E, E<1> secured to the sides of the seat. The pivot pins of the links C and D on the wall brackets are not in the same vertical line, and the links C are arranged outside the brackets, while the links D are inside ; the pivot pins on the seat brackets are in different horizontal lines, and each link D is provided intermediate its ends with a stop F against which the corresponding long link C abuts.
Patent GB-425648-A (GB)
Title: Treatment of ores, metallurgical by-products and the like to effect a separation of selenium from precious metals
IPC: C01B19/00
Filed: 1934-03-16
Abstract: Ores, metallurgical by-products, and residues such as slimes, sludges, or anode mud containing selenium and precious metals are roasted and leached with sulphuric acid to remove copper, and the residue subjected in the presence of an alkali compound such as caustic soda or soda ash to a controlled oxidizing treatment to convert the selenium to alkali selenite, which is then dissolved out leaving the precious metals as an insoluble residue.  Sodium nitrate is the preferred oxidizing agent, but air may also be used, and potassium compounds may replace the sodium compounds referred to above.  The alkali selenite solution is neutralized with sulphuric acid to remove lead and tellurium which are filtered off, and then acidified and treated with sulphur dioxide to precipitate red selenium which is boiled with water to obtain black selenium.  An example is given of the treatment of anode mud produced in the electrolytic refining of copper.  In this case the precious metal residue containing 88 per cent of precious metals is washed, treated with hot dilute sulphuric acid to remove any remaining copper, selenium, and tellurium, and melted down with a small amount of sodium hydroxide-sodium nitrate flux to remove antimony and lead and obtain a product containing 99 per cent of gold and silver.ALSO:Ores, metallurgical by-products, and residues such as slimes, sludges, and anode mud containing selenium and precious metals are roasted and leached with sulphuric acid to remove copper, and the residue subjected to controlled oxidation in the presence of an alkali compound to convert selenium present to alkali selenite, which is then dissolved out leaving the precious metals as an insoluble residue.  In the treatment of anode mud produced in the electrolytic refining of copper, the precious metal residue containing 88 per cent of precious metals is washed, treated with hot dilute sulphuric acid to remove any remaining copper, selenium, and tellurium, and melted down with a small amount of sodium hydroxide-sodium nitrate flux to remove antimony and lead and obtain a product containing 99 per cent of gold and silver.
Patent GB-254370-A (GB)
Title: Improvements in and connected with automatic reversing switch or pole changing mechanism for dynamo electric machines
IPC: H02P9/14
Filed: 1925-03-30
Abstract: 254,370. Stone & Co., Ltd., J., and Kennard, A. E. March 30, 1925. Supplying consuming devices from variablespeed generators.-In train lighting systems employing two batteries which are charged alternately, the reversing switch of the dynamo pole changing mechanism may be modified to change the batteries over at each reversal. This is effected by providing the rocker s which carries the moving contacts of the reversing switch with an arm s<4> adapted to co-operate with a double pole change-over switch the moving contacts 12, 13 of which are connected respectively to a lamp resistance and to the external circuit, and on the sliding movement of the sleeve are caused to engage one or other of the pairs of the battery contacts B<1>, B<2>, B<10>, B<20> according to position to which the rocker has been moved in the starting operation. If it is desired to obtain a change over of the batteries more frequently, the rocker may be caused to operate a step by step feed device of a revolving switch arrangement whereby a change over is effected at every sliding movement of the rocker on stopping and starting instead of only on reversal of direction.
Patent GB-100776-A (GB)
Title: Improvements in or relating to Cycle Side Cars.
IPC: B62K27/02
Filed: 1915-03-31
Abstract: 100,776. Vickers, Ltd., Buckham, G. T., and Smith, F. March 31, 1915. Side-cars.-The seat A of a gun-carrying cycle side-car has a vertical pivot mounting D whereby it may be swung round to enable the passenger to face in either a forward or rearward direction. The seat may be raised about an horizontal pivot C when being reversed, in order to clear the sidecar framework E. The seat is shown applied to a side-car having bed-plates F' and release catches G for a gun H, which can thereby be arranged to fire in a forward or rearward direction, as described in Specification 5004/15.
Patent GB-551172-A (GB)
Title: Improvements relating to planing machines and the like
IPC: B23D7/00
Filed: 1942-06-22
Abstract: 551,172. Planing machines. STIRK & SONS, Ltd., J., and NEWBOULD, C. June 22, 1942, No. 8565. [Class 83 (iii)] In a planing or like machine the tool-clapper 1 is pivoted at 2 to a plate 3 which is angularly adjustable through 90 degrees or more in both directions from the centre line of the traversing and tiltable slide 4, and the tool is relieved from the work on the return strokes in all positions of adjustment by means of a solenoid 7 actuating a plunger 8 which bears directly on the central part of the clapper. In the form shown the plate 3 may be adjusted through 360 degrees. The solenoid is located in a cavity at the base of the slide 4. Specification 472,566 is referred to.
Patent GB-759203-A (GB)
Title: High power electron tube
IPC: H01J21/06
Filed: 1954-03-24
Abstract: 759,203. Thermionic valves. RADIO CORPORATION OF AMERICA. March 24, 1954 [April 1, 1953], No. 8608/54. Class 39 (1). A high-frequency high-power valve has the cathode and control grid formed by an array of spaced elements facing a common anode, a massive screen grid support on the side of the array remote from the anode and screen structures passing from the support up between the elements of the array to screen grid elements shielding the control grid elements from the anode. The cathode strips 11, Fig. 3, control grids 12 and screen structures 13 are spaced in annular array round central anode 14. The cathodes are strips of tungsten or tantalum which may be coated with thoria and are supported from annular members 19 and 20, the lower end of each cathode engaging in a slot in 19 and the upper end being held by a spring tensioner 37. A tubular member 22 carrying a cooling channel 23 is sealed to cup 25 which carries the grid support disc 24 to which control grids 12 supported on brackets 65 are clamped by plate 68. Disc 24 is cooled by liquid fed in at 30. Screen grid support 18 is interposed between 19 and 20 and is insulated therefrom by mica discs 31 and 32 and can be cooled by liquid fed in at 48 which circulates in channel 49. Each cathode 11 surrounded by a control grid 12 is totally enclosed by a screen structure made of plates 17<SP>1</SP> and 17, Fig. 7. Window 53 in 17 is covered by screen wires 15 mounted on side-rods 16, Fig. 3. Plate 55 is flanged at its periphery and brazed to the lower ends of plates 17 whilst the upward extensions 52 of plates 17 are sandwiched between rings 57 and 58, thus completing the screen structure, plate 58 being insulated from 70 by mica disc 86. A plurality of bolts (not shown) clamp 19 to 20 in an insulated manner, thus also securing 18 and the bolts also carry a spring arrangement which presses disc 58 upwards against 70. Anode header 70 is sealed in an insulating manner to cup 73 to which the anode 14 and anode back 77 are sealed. The anode is cooled by liquid flowing in channel 82 which is fed in via pipe 81. The envelope is completed by cylinder 83 and steel flanges 84 and 85 which are finally welded together. The main supporting structures are preferably made of copper and further cooling channels 21 and 33 are provided in the cathode end plates and 75 in the anode header, channels 21, 23 and 75 being fed from a common connection 43. For high frequencies the screen electrodes are effectively coupled to cathode by the capacities formed across mica discs 31, 32 and 86. For additional mechanical stability the ladder type of control grid with two support wires may be replaced by an open-sided tubular support, Fig. 10 (not shown) having parallel control wires 92 stretched across the opening, the tubes being mounted in holes pierced in a supporting flange 93 which can be bolted to 24 in place of plate 68.
Patent GB-1392576-A (GB)
Title: Swimming aid
IPC: A63B31/08
Filed: 1973-02-22
Abstract: 1392576 Swimming aid G C PHILLIPS (COVENTRY) Ltd 22 Feb 1973 8617/73 Heading A6D A swimming aid comprises a flat or curved paddle member 10 with attachment means 15, 16 for attaching the paddle to portions of the hand. In one embodiment, as shown, the paddle is a flat, rectangular plate of plastics but it may also be curved (Fig. 2 not shown) or flat with curved edges (17) (Fig. 3 not shown). The attachment means comprises tubular elongate members, 15 for the wrist and 16 for the finger(s), of rubber and are of greater diameters than those of holes 13, 14 in the plate 10. The plate lies against the palm of the hand and the rubber members 15, 16 may be tightened by pulling their free ends further through the holes. The plate may be flexible or have separate hinged sections.
Patent GB-512505-A (GB)
Title: An improved razor sharpening or stropping device
IPC: B24D15/10
Filed: 1938-03-22
Abstract: 512,505. Stropping razors. FOSTER, J. W. March 22, 1938, No. 8763. [Class 60] A device for sharpening or stropping razor blades comprises a strip of soft rubber 1 bent at 2 around, and secured to a cylindrical support 3, which may be a rubber tube. The blade is inserted between the pressed together ends of the strip, which are coated with razor paste &c. and the strip is drawn outwardly across the blade edge.
Patent GB-849360-A (GB)
Title: An electromagnetic torsionmeter
IPC: G01L3/10
Filed: 1959-03-13
Abstract: 849,360. Electric measuring systems. VYZKUMNY A ZKUSEBNI LETECKY USTAV. March 13, 1959 [March 24, 1958], No. 8771/59. Class 40 (1). A torque meter comprises two ferromagnetic bodies 11, 12, Fig. 1, connected together and between two shafts 1, 6 which transmit the load to be measured, the bodies 11, 12 being surrounded by series-connected toroidal exciting windings 31, 32 wound in opposition and supplied with A.C. through brushes 61, 62 and slip rings 51, 52. The bodies 11, 12 are journalled in bearings 7 in a housing 8 which supports two pick-up coils 21, 22 which are connected, as shown in Fig. 2, in series with the two secondary windings 41, 42 of a transformer 40. The windings 41, 42 are connected in aiding series, outputs from the pick-up coils due to deformation of the bodies by an applied torque opposing one another in the series circuit, while spurious signals due to stray fields affect the outputs of windings 41, 42 equally. Indication is provided by a meter 15 connected between a potentiometer 13 interposed between the windings 41, 42, and a second potentiometer 14 connected between two diodes 10, the other electrodes of which are connected to the pick-up coils 21, 22.
Patent GB-129061-A (GB)
Title: Improvements in or relating to Detachable Wheels.
Inventor: GOODYEAR ERNEST FREDERICK
IPC: B60B3/08
Filed: 1918-05-28
Abstract: 129,061. Goodyear, E. F. May 28, 1918. Disk wheels.-A wheel comprises a single metal disk b with radial corrugations e which increase in depth towards the rim, the disk being riveted or welded to a reinforcing-plate c and detachably secured against the hub flange a<1> by bolts g. The disks b, c may be eyeleted at the boltholes and may be clamped together at the centre by a grooved collar.
Patent GB-1383443-A (GB)
Title: Conveyor for flat articles in upright disposition
IPC: B07C1/04
Filed: 1972-02-25
Abstract: 1383443 Belt conveyers for flat articles; feeding sheets LICENTIA PATENT-VERWALTUNGS-GmbH 25 Feb 1972 [27 Feb 1971] 8800/72 Headings B8A and B8R Bundles of documents or letters to be separated into a single stream, are supported on edge on a conveyer belt 2 between converging belts 5, 6, and are fed between a conveyer belt 10 and a friction-faced roller 7 driven in a direction contrary to the conveying direction of the belt 10. The roller 7 is spring-urged towards the belt 10 until it engages a stop roller 21. The parts are so arranged that as the surfaces wear, the distance between the surface of the belt 10 and the periphery of the facing on the belt 7, remains constant. In a modification (not shown), the belt 10 may be replaced by a feed roller, and the latter may be spring urged towards the roller 7 (instead of vice-versa as shown). In another modification (Fig. 2, not shown), the stop roller may be provided by a roller 15.
Patent GB-101463-A (GB)
Title: Improvements in Making Marmalade.
Inventor: RUSSELL ROBERT JAMES
IPC: A23L21/12
Filed: 1916-06-26
Abstract: 101,463. Russell, R. J. June 26, 1916. Marmalade.-The peel of the orange or fruit is pulped and mixed with gelatine, starch, glucose, or farinaceous material to form a stiff dough, which may be coloured with fruit or other juice, and is pressed through perforated plates to form threads, or formed into flakes, lozenges, stars, or other shapes, which may be sugared and dried, and are added to the rest of the fruit.